Add instanceof opcode handler. Untested.
Add instanceof opcode handler. Untested.

robertsipka/jerryscript,tilmannOSG/jerryscript,jerryscript-project/jerryscript,bsdelf/jerryscript,gabrielschulhof/jerryscript,glistening/jerryscript,akosthekiss/jerryscript,zherczeg/jerryscript,bzsolt/jerryscript,glistening/jerryscript,LaszloLango/jerryscript,zherczeg/jerryscript,martijnthe/jerryscript,jack60504/jerryscript,robertsipka/jerryscript,akosthekiss/jerryscript,loki04/jerryscript,dbatyai/jerryscript,slaff/jerryscript,robertsipka/jerryscript,martijnthe/jerryscript,bzsolt/jerryscript,jack60504/jerryscript,jerryscript-project/jerryscript,jerryscript-project/jerryscript,bsdelf/jerryscript,LaszloLango/jerryscript,zherczeg/jerryscript,gabrielschulhof/jerryscript,glistening/jerryscript,grgustaf/jerryscript,tilmannOSG/jerryscript,jerryscript-project/jerryscript,martijnthe/jerryscript,yichoi/jerryscript,bsdelf/jerryscript,yichoi/jerryscript,grgustaf/jerryscript,dbatyai/jerryscript,zherczeg/jerryscript,grgustaf/jerryscript,grgustaf/jerryscript,yichoi/jerryscript,LeeHayun/jerryscript,tilmannOSG/jerryscript,LeeHayun/jerryscript,loki04/jerryscript,slaff/jerryscript,dbatyai/jerryscript,akosthekiss/jerryscript,robertsipka/jerryscript,grgustaf/jerryscript,gabrielschulhof/jerryscript,LaszloLango/jerryscript,bzsolt/jerryscript,jack60504/jerryscript,martijnthe/jerryscript,jack60504/jerryscript,bsdelf/jerryscript,loki04/jerryscript,glistening/jerryscript,martijnthe/jerryscript,loki04/jerryscript,bsdelf/jerryscript,glistening/jerryscript,dbatyai/jerryscript,slaff/jerryscript,dbatyai/jerryscript,loki04/jerryscript,bzsolt/jerryscript,robertsipka/jerryscript,grgustaf/jerryscript,jerryscript-project/jerryscript,slaff/jerryscript,jack60504/jerryscript,jack60504/jerryscript,martijnthe/jerryscript,gabrielschulhof/jerryscript,tilmannOSG/jerryscript,akosthekiss/jerryscript,yichoi/jerryscript,LeeHayun/jerryscript,tilmannOSG/jerryscript,bzsolt/jerryscript,gabrielschulhof/jerryscript,glistening/jerryscript,LeeHayun/jerryscript,robertsipka/jerryscript,zherczeg/jerryscript,LaszloLango/jerryscript,bsdelf/jerryscript,akosthekiss/jerryscript,slaff/jerryscript,loki04/jerryscript,LeeHayun/jerryscript,LaszloLango/jerryscript,yichoi/jerryscript